Refraction of Light — Physics STD 10 — Question

Name two appliances in which an electric motor is used.

A mixture of radioactive substance gives off three types of radiation name the radiations which are charged.

State the energy changes in the following case while in use:
an electric bulb

State the energy changes which take place when An electric bulb glows when it is connected to a source of electric current.

What is the usual colour code followed for connecting live, neutral and earth wires?

What are infrasonics?

Define the term calorie. How is it related to joule(the S.I. unit of heat)?

Energy can exist in several forms and may change from one form to another. For the following, state the energy changes that occur in:
a loaded truck when started and set in motion.

What kind of energy transformation takes place at a thermal power station?

A mixture of radioactive substance gives off three types of radiation name the radiation which has the highest speed.